Insider Transactions Reported by 20 Insiders of MANNKIND CORP

Symbol: MNKD on Nasdaq
Location: Danbury, CT

Quick Takeaways

MNKD - MANNKIND CORP has 20 insiders with reported activity on this page.
Net insider value flow over the last year: -$3,427,301.
Recent transaction rows are available for direct filing-level review.

What Changed

Buy value: ; sell value: $3,427,301.
Net share flow: -657,717.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Source Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to selling over the last 12 months. Net value: -$3,427,301.

Buys

Shares: 0

Insiders: 0

Sells

$3,427,301

Shares: 657,717

Insiders: 5

Net

-$3,427,301

Shares: -657,717

Insiders: -5

Window (months)	Sell shares	Buy $	Sell $	Net $
0-3	19,973	$0	$65,711	-$65,711
3-6	410,626	$0	$2,369,975	-$2,369,975
6-9	65,777	$0	$345,428	-$345,428
9-12	161,341	$0	$646,187	-$646,187

MANNKIND CORP executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Michael Castagna	Chief Executive Officer, Director	$5,992,974	-$1,249,292	-17%	Mixed	11 May 2026
Alejandro Galindo	EVP Endocrine Business Unit	$3,108,300			Mixed	22 Aug 2022
Joseph Kocinsky	Chief Technology Officer	$2,980,932			Mixed	27 Aug 2022
David Thomson	EVP Genl Counsel & Secretary	$2,718,523	-$872,871	-24%	Filing P/S	11 May 2026
Steven B. Binder	Director	$2,658,346	-$662,162	-20%	Filing P/S	11 May 2026
Stuart A. Tross	Chief People & Workpl Officer	$2,430,948	-$548,528	-18%	Median	11 May 2026
Sanjay R. Singh	EVP Technical Operations	$2,289,711	-$94,448	-4%	Filing P/S	23 Mar 2026
Burkhard R. Blank	EVP Chief Medical Officer	$1,774,045			Mixed	15 Jul 2025
Ajay Ahuja	Chief Medical Officer	$1,708,734			Mixed	23 Mar 2026
Dominic Marasco	Pres, Endocrine Business Unit	$1,520,436			Mixed	23 Jun 2025
Lauren M. Sabella	EVP Operations	$1,346,887			Mixed	15 Jul 2025
Christopher B. Prentiss	Chief Financial Officer	$830,363			Median	22 Apr 2026
Anthony C. Hooper	Director	$772,220			Mixed	01 Mar 2026
James Samuel Shannon	Director	$211,356			Mixed	01 Mar 2026
Jennifer Grancio	Director				Mixed	14 May 2025
Michael A. Friedman	Director				Mixed	14 May 2025
Ronald J. Consiglio	Director				Mixed	14 May 2025
Kent Kresa	Director				Mixed	15 May 2024
Sabrina Kay	Director				Mixed	14 May 2025
Christine Mundkur	Director				Mixed	14 May 2025

Top shareholders of MANNKIND CORP (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock, Inc.	13F	Company	9.3%	28,600,998	$70,072,446	—	31 Mar 2026	13F
STATE STREET CORP	13D/G 13F	STATE STREET CORPORATION · Company	6.1%	18,683,483	$47,456,047	$0	31 Mar 2026	13D/G 13F
VANGUARD CAPITAL MANAGEMENT LLC	13F	Company	4.2%	12,891,066	$31,583,112	—	31 Mar 2026	13F
UBS Group AG	13F	Company	2.7%	8,255,430	$20,225,804	—	31 Mar 2026	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	2.5%	7,505,147	$18,391,212	—	31 Mar 2026	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	2.1%	6,390,922	$15,657,759	—	31 Mar 2026	13F
Frazier Life Sciences Management, L.P.	13F	Company	1.9%	5,900,000	$14,455,000	—	31 Mar 2026	13F
MORGAN STANLEY	13F	Company	1.9%	5,793,147	$14,193,210	—	31 Mar 2026	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	1.6%	4,953,295	$12,133,938	—	31 Mar 2026	13F
180 WEALTH ADVISORS, LLC	13F	Company	1.4%	4,291,703	$10,514,672	—	31 Mar 2026	13F
Rubric Capital Management LP	13F	Company	1.2%	3,620,413	$8,870,012	—	31 Mar 2026	13F
FMR LLC	13F	Company	1.1%	3,480,964	$8,528,361	—	31 Mar 2026	13F
BANK OF AMERICA CORP /DE/	13F	Company	1.1%	3,383,677	$8,290,008	—	31 Mar 2026	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	1.1%	3,283,179	$8,043,789	—	31 Mar 2026	13F
VANGUARD PORTFOLIO MANAGEMENT LLC	13F	Company	1%	3,171,824	$7,770,969	—	31 Mar 2026	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.96%	2,942,320	$7,208,684	—	31 Mar 2026	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.95%	2,895,874	$7,094,891	—	31 Mar 2026	13F
NORTHERN TRUST CORP	13F	Company	0.87%	2,675,950	$6,556,078	—	31 Mar 2026	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.83%	2,549,067	$6,245,214	—	31 Mar 2026	13F
Michael Castagna	3/4/5	Chief Executive Officer, Director	— mixed-class rows	4,021,810 mixed-class rows	$5,992,974	-$1,249,292	11 May 2026	3/4/5
Avoro Capital Advisors LLC	13F	Company	0.72%	2,200,000	$5,390,000	—	31 Mar 2026	13F
Nuveen, LLC	13F	Company	0.71%	2,164,715	$5,303,552	—	31 Mar 2026	13F
Qube Research & Technologies Ltd	13F	Company	0.7%	2,149,393	$5,266,013	—	31 Mar 2026	13F
VANGUARD FIDUCIARY TRUST CO	13F	Company	0.7%	2,137,637	$5,237,211	—	31 Mar 2026	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.61%	1,868,442	$4,577,683	—	31 Mar 2026	13F
MARSHALL WACE, LLP	13F	Company	0.51%	1,561,889	$3,826,629	—	31 Mar 2026	13F
Invesco Ltd.	13F	Company	0.49%	1,505,604	$3,688,730	—	31 Mar 2026	13F
Alejandro Galindo	3/4/5	EVP Endocrine Business Unit	— class O/S missing	777,075	$3,108,300	—	22 Aug 2022	3/4/5
Point72 Asset Management, L.P.	13F	Company	0.41%	1,249,177	$3,060,484	—	31 Mar 2026	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.4%	1,232,642	$3,019,973	—	31 Mar 2026	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.4%	1,232,078	$3,018,591	—	31 Mar 2026	13F
Joseph Kocinsky	3/4/5	Chief Technology Officer	— class O/S missing	745,233	$2,980,932	—	27 Aug 2022	3/4/5
CITADEL ADVISORS LLC	13F	Company	0.39%	1,190,431	$2,916,556	—	31 Mar 2026	13F
David Thomson	3/4/5	EVP Genl Counsel & Secretary	— mixed-class rows	1,264,299 mixed-class rows	$2,718,523	-$872,871	11 May 2026	3/4/5
Steven B. Binder	3/4/5	Director	— mixed-class rows	905,887 mixed-class rows	$2,658,346	-$662,162	11 May 2026	3/4/5
Stuart A. Tross	3/4/5	Chief People & Workpl Officer	— mixed-class rows	1,430,224 mixed-class rows	$2,430,948	-$548,528	11 May 2026	3/4/5
Sanjay R. Singh	3/4/5	EVP Technical Operations	— mixed-class rows	893,211 mixed-class rows	$2,289,711	-$94,448	23 Mar 2026	3/4/5
FIRST TRUST ADVISORS LP	13F	Company	0.28%	869,254	$2,129,672	—	31 Mar 2026	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.28%	860,474	$2,108,161	—	31 Mar 2026	13F
Bank of New York Mellon Corp	13F	Company	0.28%	845,526	$2,071,539	—	31 Mar 2026	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	0.27%	827,853	$1,962,012	—	31 Mar 2026	13F
Empowered Funds, LLC	13F	Company	0.25%	765,356	$1,875,122	—	31 Mar 2026	13F
SEI INVESTMENTS CO	13F	Company	0.24%	726,396	$1,779,648	—	31 Mar 2026	13F
Burkhard R. Blank	3/4/5	EVP Chief Medical Officer	0.15%	460,791	$1,774,045	—	15 Jul 2025	3/4/5
Woodline Partners LP	13F	Company	0.23%	719,134	$1,761,878	—	31 Mar 2026	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.23%	715,862	$1,753,862	—	31 Mar 2026	13F
BNP PARIBAS FINANCIAL MARKETS	13F	Company	0.23%	698,137	$1,710,436	—	31 Mar 2026	13F
Ajay Ahuja	3/4/5	Chief Medical Officer	— mixed-class rows	756,200 mixed-class rows	$1,708,734	—	23 Mar 2026	3/4/5
SCOPIA CAPITAL MANAGEMENT LP	13F	Company	0.23%	694,961	$1,702,654	—	31 Mar 2026	13F
Jefferies Financial Group Inc.	13F	Company	0.23%	691,700	$1,694,665	—	31 Mar 2026	13F

Recent Insider Transactions by Companies or Individuals for MANNKIND CORP

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
Steven B. Binder	MNKD	Common Stock, $0.01 Par Value	Sale	-2.05%	$55,733	$3.29	-16,940	808,008	12 May 2026	Direct
David Thomson	MNKD	Common Stock, $0.01 Par Value	Sale	-0.37%	$9,979	$3.29	-3,033	826,299	12 May 2026	Direct
Stuart A. Tross	MNKD	Common Stock, $0.01 Par Value	Tax liability	-0.81%			-8,073	992,224	11 May 2026	Direct
Steven B. Binder	MNKD	Common Stock, $0.01 Par Value	Tax liability	-0.67%			-5,560	824,948	11 May 2026	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Tax liability	-1.41%			-34,957	2,442,310	11 May 2026	Direct
David Thomson	MNKD	Common Stock, $0.01 Par Value	Tax liability	-1.47%			-12,387	829,332	11 May 2026	Direct
Christopher B. Prentiss	MNKD	Common Stock, $0.01 Par Value	Tax liability	-3.49%			-12,267	338,924	22 Apr 2026	Direct
Christopher B. Prentiss	MNKD	Employee Stock Option (right to buy)	Award				217,000	217,000	23 Mar 2026	Direct
Christopher B. Prentiss	MNKD	Performance Restricted Stock Unit	Award				221,000	221,000	23 Mar 2026	Direct
Michael Castagna	MNKD	Employee Stock Option (right to buy)	Award				782,000	782,000	23 Mar 2026	Direct
Michael Castagna	MNKD	Performance Restricted Stock Unit	Award				796,000	796,000	23 Mar 2026	Direct
Sanjay R. Singh	MNKD	Employee Stock Option (right to buy)	Award				217,000	217,000	23 Mar 2026	Direct
Sanjay R. Singh	MNKD	Performance Restricted Stock Unit	Award				221,000	221,000	23 Mar 2026	Direct
Ajay Ahuja	MNKD	Employee Stock Option (right to buy)	Award				217,000	217,000	23 Mar 2026	Direct
Ajay Ahuja	MNKD	Performance Restricted Stock Unit	Award				221,000	221,000	23 Mar 2026	Direct
Stuart A. Tross	MNKD	Employee Stock Option (right to buy)	Award				217,000	217,000	23 Mar 2026	Direct
Stuart A. Tross	MNKD	Performance Restricted Stock Unit	Award				221,000	221,000	23 Mar 2026	Direct
David Thomson	MNKD	Employee Stock Option (right to buy)	Award				217,000	217,000	23 Mar 2026	Direct
David Thomson	MNKD	Performance Restricted Stock Unit	Award				221,000	221,000	23 Mar 2026	Direct
James Samuel Shannon	MNKD	Common Stock, $0.01 Par Value	Award	22.8%			12,000	64,635	01 Mar 2026	Direct
Anthony C. Hooper	MNKD	Common Stock, $0.01 Par Value	Award	17.4%			35,000	236,153	01 Mar 2026	Direct
Christopher B. Prentiss	MNKD	Common Stock, $0.01 Par Value	Award	1.45%			5,000	348,854	01 Mar 2026	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Award	0.62%			15,290	2,475,911	01 Mar 2026	Direct
Stuart A. Tross	MNKD	Common Stock, $0.01 Par Value	Award	1.55%			15,290	1,000,297	01 Mar 2026	Direct
Michael Castagna	MNKD	Employee Stock Option (right to buy)	Award				145,275	57,750	26 Feb 2026	Direct
Steven B. Binder	MNKD	Employee Stock Option (right to buy)	Award				45,025	45,025	26 Feb 2026	Direct
David Thomson	MNKD	Employee Stock Option (right to buy)	Award				57,525	37,525	26 Feb 2026	Direct
Stuart A. Tross	MNKD	Employee Stock Option (right to buy)	Award				48,143	28,143	26 Feb 2026	Direct
Stuart A. Tross	MNKD	Common Stock, $0.01 Par Value	Sale	-4.55%	$297,548	$6.33	-47,006	985,007	08 Jan 2026	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Gift	-1.76%			-44,171	2,460,621	24 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Sale	-2.56%	$395,482	$6.01	-65,804	2,504,792	17 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Options Exercise	2.63%			65,804	2,570,596	17 Dec 2025	Direct
Michael Castagna	MNKD	Employee Stock Option (Right to Buy)	Options Exercise	-100%			-65,804	0	17 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Sale	-0.84%	$127,860	$6.00	-21,310	2,504,792	16 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Options Exercise	0.85%			21,310	2,526,102	16 Dec 2025	Direct
Michael Castagna	MNKD	Employee Stock Option (Right to Buy)	Options Exercise	-57.4%			-21,310	15,804	16 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Sale	-0.82%	$124,836	$6.00	-20,806	2,504,792	12 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Options Exercise	0.83%			20,806	2,525,598	12 Dec 2025	Direct
Michael Castagna	MNKD	Employee Stock Option (Right to Buy)	Options Exercise	-100%			-20,806	0	12 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Sale	-4.13%	$601,114	$5.57	-107,920	2,504,792	02 Dec 2025	Direct
Michael Castagna	MNKD	Common Stock, $0.01 Par Value	Options Exercise	4.31%			107,920	2,612,712	02 Dec 2025	Direct
Michael Castagna	MNKD	Employee Stock Option (Right to Buy)	Options Exercise	-100%			-107,920	0	02 Dec 2025	Direct
David Thomson	MNKD	Common Stock, $0.01 Par Value	Sale	-14.9%	$823,135	$5.57	-147,780	841,719	02 Dec 2025	Direct
David Thomson	MNKD	Common Stock, $0.01 Par Value	Options Exercise	17.6%			147,780	989,499	02 Dec 2025	Direct
David Thomson	MNKD	Employee Stock Option (Right to Buy)	Options Exercise	-100%			-147,780	0	02 Dec 2025	Direct
Sanjay R. Singh	MNKD	Common Stock, $0.01 Par Value	Sale	-3.96%	$94,448	$5.03	-18,777	455,211	14 Nov 2025	Direct
Ajay Ahuja	MNKD	Common Stock, $0.01 Par Value	Award				318,200	318,200	11 Nov 2025	Direct
Sanjay R. Singh	MNKD	Common Stock, $0.01 Par Value	Tax liability	-3.48%			-17,071	473,988	31 Oct 2025	Direct
Stuart A. Tross	MNKD	Common Stock, $0.01 Par Value	Sale	-4.36%	$250,980	$5.34	-47,000	1,032,013	16 Sep 2025	Direct
Stuart A. Tross	MNKD	Common Stock, $0.01 Par Value	Award	1.2%			12,755	1,079,013	05 Aug 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.